Abstract
This paper deals with detection and imaging of magnetic modulated nanoparticles by means of ultra-wideband sensing. Investigations base on ON/OFF modulation of the external polarizing magnetic field. Measurements were conducted using M-sequence technology and a phantom consisting of a skin layer and cream as healthy tissue surrogate. The detection of the magnetic nanoparticles is realized by a differential measurement between the ON- and OFF-state of the polarizing magnetic field. Furthermore, a calibration approach is introduced to reduce the influence of the magnetic field in the measured radar response. Results show the detectability of different amounts of magnetic nanoparticles for a realistic measurement scenario. Based on this, a first imaging of the magnetic nanoparticles is realized using a delay-and-sum beamforming algorithm.
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